131927638 has 8 divisors (see below), whose sum is σ = 198644688. Its totient is φ = 65712744.

The previous prime is 131927603. The next prime is 131927651. The reversal of 131927638 is 836729131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 131927638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124881 + ... + 125932.

It is an arithmetic number, because the mean of its divisors is an integer number (24830586).

Almost surely, 2^131927638 is an apocalyptic number.

131927638 is a deficient number, since it is larger than the sum of its proper divisors (66717050).

131927638 is a wasteful number, since it uses less digits than its factorization.

131927638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251078.

The product of its digits is 54432, while the sum is 40.

The square root of 131927638 is about 11485.9757095338. The cubic root of 131927638 is about 509.0712791770.

The spelling of 131927638 in words is "one hundred thirty-one million, nine hundred twenty-seven thousand, six hundred thirty-eight".